Gauge



Mar. 27, 1923. 1,449,368;

A. G. ANDERSON.

GAUGE.

MAY

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Patented Mar. 27, 1923.

UNHTED STATES ANDREW Gr. ANDERSON,

OF CHICAGO, ILLINOIS.

GAUGE.

Application filed May 22,

To all whom it may concern:

Be it known that 1, ANDREW G. ANDER- son, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Gauges, of which the following is a specification.

The gauge which is the. subject matter of the present application for. patent has been designed more particularly for use by carpenters to facilitate the accurate fitting of locks to doors, and it is the object of the in vention to provide a very simple and efficient tool for this purpose embodying certain novel features of construction and modes of operation to be pointed out in the detailed description appearing hereinafter.

In order that the invention may be better understood, reference is had to the accompanying drawing, in which:

Figure 1 is a perspective view of the tool showing one way it may be used; Figs. 2 to 5 are elevations showing the various other ways the tool may be used, and Fig. 6 is a central longitudinal section of the tool.

Referring specifically to the drawing, the body of the gauge is a rectangular block 10 having a lateral right-angled offset 11 at one end. The block 10 carries a number of scribers, and the offset also carries; a somber. One of the scribers carried by the block 10 consists of a blade 12 fastened to one end of a pair of parallel shanks 1 3 carrying at their other ends a guide plate 1 1. The blade 12 and the plate 14 are rigidly fastened to the shanks 13 and therefore connect the same in laterally spaced and parallel relation. The block 10 also carries a scriber shank 15 having scribing blade at each end, the same being denoted by the reference characters 16 and 17, and each being a disk having a sharpened periphery to produce a cutting edge. The shank 15 is parallel to the shanks 13, and the length of said shanks is the same.

The seriber shanks 13 and 15 pass transversely through the block 10 to locate the blades 12 and 16 on one side thereof, and the guide plate 1 1 and the blade 17 on the opposite side, and said shanks are slidably connected to the block in order that they may be set to position the blades and the guide plate the desired distances from the sides of the block.

The block 10 has transverse openings to seat the shanks 13 and 15, and on one side 1922. Serial No. 562,706.

it has a recess 18 in which fits a clamping block 19 for holding the shanks in adjusted position. The inner end of the recess 18 and the contiguous portion of the block 19 have matching grooves, as shown in Fig. 6 in which the shanks seat. A screw 20 and a bolt 21 are employed for forcin the block 19 into clamping engagement wit h the shanks. The screw 20 passes through the block 19 and is threaded into the block 10, whereas the bolt 21 passes through both blocks and is provided with a wing nut 22. The heads of the screw and the bolt are countersunk in the block 19.

The scriber carried by the offset 11 is a disk-like blade 23 carried by a threaded stem 24 passing through a threaded transverse aperture in said offset. The inner end of the stem 24 is rovided with a milled head 25 for facilitating its operation. The stem 24 is adjustable to locate the scriber blade 23 the desired distance from the offset 11, and it is held in adjusted position by a lock nut 26.

Fig. 1 illustrates the manner in which the tool is used as a casement gauge. A fragment of the hinge-edge of a door-j amb is shown at 27, and the molding against which the inner face of the door closes, at 28. The block 10 is placed against the edge of the jamb and the shanks 13 are advanced to bring the plate 14 against the edge of the molding. The leaf of the hinge to be secured to the jamb is now placed on the shank 15 and the latter is adjusted to locate the scriber blade 17 a distance from the block 10 correspond ,ing to the width of said hinge leaf. The

hinge leaf is now removed and a line is made on the jamb by the blade 17, the same being guided by sliding the plate 1%1 along the edge of the molding 28. If there is no moldin on the jamb, the edge of the latter is used to guide the tool, the block 10 being slid along said edge. The line scratched by the blade 17 determines the width of the recess to be made in the jamb for receiving the hinge leaf. The tool is now removed from the jamb and applied to the edge of the door, a. fragment of which latter is shown at 29 in Fig. 2. The tool is guided as before by sliding the plate 14 along the edge of the door. The line scratched by the blade 17 determines the position of the hinge leaf which is to be attached to the door.

To gauge the depth of the recess in the jamb 27 to seat the hinge leaf, the shank 24 of the scriber blade 23 is advanced to position said blade a distance from the offset 11 corresponding to the thickness of the hinge leaf. The tool is then placed with the offset 11 in contact with the face of the jamb as shown in Fig. at and guided along the same so that the line scratcher by the blade 23 indicates the depth of the recess to be made. The edge of the door is operated on in a like manner to get the proper depth of the recess in which the other hinge leaf is to seat.

The blade 17 and the guide plate let may also be used for gauging the depth of the recesses in the jarnb and in the edge of the door to seat the hinge leaves as shown in Fig. 3.

In order to accurately locate in the closing edge 29 of the door 29 the recess in which the lock is to be seated, the scriber blades 12 and 16 are used. As the width of the lock is the same as the strike plate 30 which is to be mounted on the jamb, said plate can he used for setting the blades 12 and 16. The strike plate 30 is therefore placed, as shown in Fig. so as to lie between the guide plate .14: and the blade 17, the

shanks 13 and 15 being slid to bring the guide plate and the blade into contact with the opposite side edges of the strike plate. This operation spaces the blades 12 and 16 a distance corresponding to the width of the strike plate, and as the plate has the same width as the lock, said blades may be used to scratch two laterally spaced parallel lines on the door edge 29*, these lines indicating the position of the lock-receiving recess to be made in the door edge. The device is used in. the same manner to locate the recess in the amb for the strike plate, and it also makes a mortise gauge when so used.

The device is very simple in construction,- and it is accurate and reliable in operation in view of which it effectually serves the purpose for which it has been designed.

I claim:

1. A gauge comprising a guide block, a pair of parallel and longitudinally adjustable shanks passing transversely through the block to project from opposite sides thereof, a guide plate carried by said shanks-on one side of the block, a scriber blade carried by the shanks 0n the other side of the block, another longitudinally adjustable shank passing transversely through the block to project from opposite sides thereof, and scriber blades on the respective ends of the second-mentioned shank.

2. A gauge comprising a guide block, a pair of parallel and longitudinally adjustable shanks passing transversely through the block to project from opposite sides thereof, a guide plate carried by said shanks on one side of the block, a scriber blade carried by the shanks on the other side of they block, said guide plate and scriber blade providing rigid connections between the shanks, another longitudinally adjustable shank passing transversely through the block to project from opposite sides thereof, and scriber blades on the respective ends of the secondmentioned shank.

3. A gauge comprising a guide block, a pair of parallel and longitudinally adjustable shanks passing tra isversely through the block to project from opposite sides thereof, a guide plate carried by said shanks on one side of the block, a scriber blade carried by the shanks on the other side of the block another longitudinally adjustable shank parallel to the first-mentioned shanks passing transversely through the block to project from opposite sides thereof, and scriber blades on the respective ends of the secondmentioned shank.

4:. A gauge comprising a guide block, a pair of parallel and longitudinally adjustable shanks passing transversely through the block to project from opposite sides thereof, a guide plate carried by said shanks on one side of the block, a scriber blade carried by the shanks on the other side of the block, another longitudinally adjustable shank passing transversely through the block to project from opposite sides thereof, scriber blades on the respective ends of the secondinentioned shank, the aforesaid guide block having a lateral offset at one end, and a scriber having a shank passing transversely and adjustably through said offset.

In testimony whereof I affix my signature.

ANDRE? G. ANDERSON.

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